VULNERABILITY INTELLIGENCE
CVE-2025-9891
CVSS score4.3 MEDIUM
EPSS probability0.20%
CISA KEVNot currently listed
Published2025-09-17
Last modified2026-09-26
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Description
The User Sync – Remote User Sync plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.0.2. This is due to missing or incorrect nonce validation on the mo_user_sync_form_handler() function. This makes it possible for unauthenticated attackers to deactivate the plugin via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Weakness classification
- security@wordfence.com: CWE-352